import random guess = '' while guess not in ('heads','tails'): print('Guess the coin toss! Enter heads or tails:') guess = input() toss = random.randint(0, 1) if toss == guess: print('You got it!') else: print('Nope! Guess again!') guesss = input() if toss == guess: print('You got it!') else: print('Nope. You are really bad at this game.')怎么找bug

这段代码有几个问题。

1. 在第 7 行后面应该加上 `guess = guess.lower()` 将用户输入的字符串转成小写，从而避免大小写不一致导致的错误。

2. 在第 9 行中，`random.randint(0, 1)` 会随机生成 0 或 1，但是这里的 `guess` 变量存储的是字符串，因此需要将 `toss` 转换成字符串，即 `toss = 'heads' if random.randint(0, 1) == 0 else 'tails'`。

3. 在第 11 行和第 14 行应该将 `guesss` 改成 `guess`，否则会导致程序运行出错。

修改后的代码如下：

import random 
guess = '' 
while guess not in ('heads','tails'):     
    print('Guess the coin toss! Enter heads or tails:')     
    guess = input().lower() 
toss = 'heads' if random.randint(0, 1) == 0 else 'tails'
if toss == guess:     
    print('You got it!') 
else:     
    print('Nope! Guess again!')     
    guess = input().lower()     
    if toss == guess:         
        print('You got it!')     
    else:         
        print('Nope. You are really bad at this game.')

这样就可以正常运行了。